Grinding wheel dresser



Oct. 26, 1948. sMlTH 2,452,398

GRINDING WHEEL DRESSER Filed'Dec. 4, 1946 2 Sheets-Sheet 1 z 2 d I 28a DInventor Adaiph 8mm? meys Uct. 26, v A. SMITH 9 9 GRINDING WHEELnmassxsm 7 Filed Dec. 4, 1946 *z'sneets-sheet z Inventor Adam PatentedOct. 26, 1948 rarely-*1 oe-Free 2 Claims.

. ,1 I 'I he present invention relates to new and-useful improvementsina-pparatus f-or dressing"grinding w-heels and" the invention has 'forits primary obj eot to providean attabhmentwhich maybe'easily andquickly mountedninwpo'sitiorrito a part of the grinding wheel andincludinga rotating dressing wheelfor.., the peripheral-:dge of thegrin'ding wheel.

A further object of the invention is to provide means for adjusting thedressing wheel transversely of the grinding wheel and forwardly andrearwardly relative to the peripheral edge thereof.

A still further object is to provide a grinding Wheel dressingattachment of simple and practical construction, which is efficient andreliable in operation, relatively inexpensive to manufacture andotherwise well adapted for purposes for which the same is intended.

Other objects and advantages reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming part hereof, wherein likenumerals refer to like parts throughout, and in which:

Figure 1 is a perspective view of the detachable bed for the dressingWheel.

Figure 2 is a sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a top plan view showing the device attached to the guard ofa grinding wheel and with parts thereof broken away and shown sections.

Figure 4 is a side elevational view.

Figure 5 is a sectional view taken on the line 55 of Figure 4.

Figure 6 is a sectional View taken on the line 6-6 of Figure 5, and

Figure 7 is a perspective view of a modified table rest.

Referring now to the drawings in detail wherein for the purpose ofillustration I have disclosed a preferred embodiment of the inventionthe numeral 5 designates an attaching bracket generally which includesan arm 6 attached at one end to the side of'a grinding wheel guard I bymeans of a bolt 8, the grinding wheel being shown at 9 and which is of aconventional power operated type.

An upstanding support I0 is formed with a longitudinally extended slot II for adjustably connecting the lower end of the support to the outerend of the arm 6 by a bolt and nut I2 and the upper end of the supportI0 is also provided with a bolt and nut I3 for pivotally attaching atable rest I l 'thereto' by" means "of an apertured "lug'i 5 on the'under's'ideof'the-table rest.

*A table I 6 is formedatits'side'edges wti-h down-'-wardlyeirtendingflanges I lwhich areclampedto the side edges "of 'thetable re'st I 4 by conventional set screws "I B te-adjust the tableforwardlwan'd rearwardly on-the'table rest I l'.

' Phe table l 6- is aisd'formed at its Side-with upwardly extendingflanges [9 having horizontal slots formed therein and in which atransverse rod 2I has its ends positioned for adjustment longitudinallyin the slots. The rod ZI is secured against endwise movement by nuts 22threaded on the outer ends of the rod and positioned against the outsideof the flanges I9.

Front and rear adjusting screws 23 and 24 are threaded through the endsof the flanges I9 with their inner ends positioned against oppositesides of the rod 2| to secure the rod in adjusted position in the slots20.

The upper edges of the flanges I9 are formed with scales 25 along whichpointers 26 carried by the rod 2| are arranged to travel to indicate theposition of adjustment of the rod.

A handle 2'! is pivotally and slidably mounted adjacent its front end ofthe rod 2| for vertical pivotal movement of the front end of the handleand for transverse sliding movement of the handle on the rod. A dressingwheel 28 is journaled on transverse shaft 28a at the bifurcated frontend 29 of the handle and has one edge projecting forwardly of thehandle. A conventional set screw 3| secures the shaft 28a in positionand projects downwardly from the front end of handle 21 to function as aguide foot for the handle during transverse sliding movement thereof. Aguard 30 closes the upper portion of the dressing wheel.

A transverse rest bar 32 extends between the rear portion of the flangesI9 on which the rear end of the handle 21 may rest to prevent downwardtilting movement of the rear end of the handle or upward tiltingmovement of the dressing wheel,

In the operation of the device the bracket 5 is attached to the guard Iof the grinding wheel in a manner as illustrated in Figures 3 and 4 ofthe drawings and the table H5 is secured in an adjusted position on thetable rest M.

The rod 2| is adjusted in the slots 20 in any desired position forcontact of the dressing Wheel is moved transversely of the rod 2| byhandle 21 whereby to rest on the surface of the grinding wheel.

The front edge of the table rest l4 may be formed with a notch 32 toreceive the grinding wheel for positioning the attachment more closelythereto and if desired clamping blocks 33 may be positioned at the sidesof table rest M where smaller table rests are used.

In view of the foregoing description taken in conjunction with theaccompanying drawings it is believed that a clear understanding of theconstruction, operation and advantages of the device will be quiteapparent to those skilled in this art. A more detailed description isaccordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shownand described a preferred embodiment of the invention the same issusceptible to certain changes fully comprehended by the spirit of theinvention as hereindescribed and the scope of the appended claims.

What I claim:

1. A grinding wheel dressing device comprising a table, means securingthe table in position adjacent the periphery of a grinding wheel, atransverse bar carried by the table, a handle slidable on the bar andpivoted thereon for vertical swinging movement, a dressing wheeljournaled on the front end of the handle for contact with the peripheryof the grinding wheel, said transverse bar being adjustable forwardlyand rearwardly on the table to move the dressing wheel toward orREFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 760,926 Schroeder May 24, 1904981,810 Sterling Jan. 17, 1911 1,715,835 Hohnhorst et al June 4, 1929FOREIGN PATENTS Number Country 7 Date 102,349 Switzerland Dec. 1, 1923

